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Flashcards in Muscles Deck (15):
1

3 types of muscles

-Skeletal
-Cardiac
-Smooth

2

Functions of skeletal muscles

-movement
-posture (Support)
-heat production

3

Endomysium

-Insulates one muscle fiber from another
-connective tissue surrounding each muscle cell/fiber to insulate from other fibers

4

Perimysium

-connective tissue that surounds several muscle fibers to form a fascicle

5

Epimysium (Fascia)

-Surrounds whole muscle

6

Cell membrane of a muscle cell

Sarcolemma (Transverse or T-Tubule)

7

Cytoplasm of muscle cell

Sarcoplasm

8

myofibrils

bundles of actin/myosin

9

sarcomere

smallest contractile, thick filaments (myosin), thin filaments (actin)

10

myosin

motor protein (thick filament

11

troponin

binds calcium (thin filament)

12

tropomyosin

blocks binding sits on actin (thin filament)

13

Actin

globular protein (thin filament)

14

Isotonic contraction

-Muscle changes length to move an object

15

Isometric contraction

-Muscle does not change length to generate force